Update sync and flash instructions in README file

Bug 1440422

Change-Id: I496ffe3049b7b341d86762c5e95478c4a2c72c04
Reviewed-on: http://git-master/r/439701
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Maria Bornski <mbornski@nvidia.com>
Reviewed-by: Chas Inman <chasi@nvidia.com>
Reviewed-by: Subodh Karmarkar <subodhk@nvidia.com>
Tested-by: Subodh Karmarkar <subodhk@nvidia.com>
1 file changed
tree: aafbd9fcc2a680753f0818828223e861288db876
  1. tlk/
  2. README